Tohutoro APA (7th ed.)
Preetham, V. V. (2002). Internet security and firewalls. Premier Press.
Tohutoru Kātū Chicago (17th ed.)
Preetham, V. V. Internet Security and Firewalls. Cincinnati, Ohio: Premier Press, 2002.
Tohutoro MLA (9th ed.)
Preetham, V. V. Internet Security and Firewalls. Premier Press, 2002.
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